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1) Living organisms have been evolved and adopted according to their……

a) habitat                        

b) needs

c) species                        

d) environment


d

2) The ability to maintain the internal environment constant is called

a) Respiration           

b) transpiration

c) Excretion              

d) homeostasis


d

Explanation: Homeostasis, from the Greek words for "same" and "steady," refers to any process that living things use to actively maintain fairly stable conditions necessary for survival. Similar processes dynamically maintain steady-state conditions in the Earth's environment.



3) The term internal and external environment was coined by…..

a) Charles Darwin          

b) Robert Hooke

c) Claude Bernard       

d) James Watson

c

Homeostasis helps organisms to…….
a) survive                                     
b)
utilize its environment
c) both a and b                    
d) none of them


c

Components of internal environment which are affected by fluctuations in external environment are……………..
a) water, solutes, temperature        
b) carbon, nitrogen, oxygen
c) salt, PH, water 
d) macronutrients

a

The process by which the amount of water and solutes are maintained in the body is called …
a)thermoregulation                    
b) Respiration
c) photosynthesis                
d) osmoregulation

d